Home / 6,431.91-9,647.85-4,224.68

Finding the Fourth Proportional to 6,431.91, 9,647.85 and 4,224.68

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Solution

The fourth proportional to 6,431.91, 9,647.85 and 4,224.68 is: 6,337.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,431.91 : 9,647.85 = 4,224.68 : x
  2. Step 2: Convert to fraction form
    6,431.91/9,647.85 = 4,224.68/x
  3. Step 3: Cross multiply
    6,431.91x = 9,647.85 × 4,224.68
  4. Step 4: Simplify right side
    6,431.91x = 40,759,030.70
  5. Step 5: Solve for x
    x = 40,759,030.70/6,431.91
  6. Step 6: Final answer
    x = 6,337.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.